Ethyl 2,3-diamino-5-(difluoromethyl)pyridine-4-carboxylate
3,5-Dibromo-2-(difluoromethyl)-4-iodopyridine
3,4-Dibromo-5-(difluoromethyl)-2-iodopyridine
3,4-Dibromo-2-(difluoromethyl)-5-iodopyridine
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